Pith Number

pith:YI7QAQ6A

pith:2017:YI7QAQ6ATVV263ILGYLFXP7OUQ

not attested not anchored not stored refs pending

Optical linear polarization measurements of quasars obtained with the 3.6m telescope at the La Silla Observatory

D. Hutsem\'ekers, D. Sluse, P. Hall

arxiv:1709.01309 v1 · 2017-09-05 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YI7QAQ6ATVV263ILGYLFXP7OUQ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:32:05.379586Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c23f0043c09d6baf6d0b36165bbfeea40ecca6a55b3a49229ad94cca23c7799a

Aliases

arxiv: 1709.01309 · arxiv_version: 1709.01309v1 · doi: 10.48550/arxiv.1709.01309 · pith_short_12: YI7QAQ6ATVV2 · pith_short_16: YI7QAQ6ATVV263IL · pith_short_8: YI7QAQ6A

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/YI7QAQ6ATVV263ILGYLFXP7OUQ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: c23f0043c09d6baf6d0b36165bbfeea40ecca6a55b3a49229ad94cca23c7799a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63fbf2a7a41e817e7f5432217642172fcd6ae30c7430fa15e9517100c425e986",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-09-05T09:48:19Z",
    "title_canon_sha256": "0efd1b5943fc4b21711dc3a3b0485ceb237bf244912bc477a7576523bbc51707"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.01309",
    "kind": "arxiv",
    "version": 1
  }
}